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  4. MAC Manuals
  5. F50/7R MAC Rigid Frame Service Manual 1955
  6. Maintenance

 Based on an assumed weekly mileage of 500.

Control Cables.

Lubricate all exposed ends of cables from oil can. Check all controls for freedom and see that nipples work freely in control levers. Remove any tight nipples from levers, ease, lubricate and refit.

Any cables showing signs of sticking within the outer casing must be de­tached from the levers and oil worked down into outer casing by feeding in oil from can and working casing up and down on inner cable whilst cable is held as upright as possible.
 Control Levers Lubricate all moving parts of levers.
 Brake Controls  Lubricate felt washers behind front and rear cam levers, trunnions at front and rear ends of rear brake rod, felts and exposed portion of brake cable on front brake cam lever.
Stands Lubricate pivots of prop stand and rear stand.
Footrests Lubricate pillion footrest pivots.
Girder Fork Spindles Grease five nipples. (Only on early models)
Footstarter Lubricate footpiece pivot.

Periodic Maintenance

Oil Tank  Drain, clean feed filter, and re-fill to within 1-in. from top of tank (i.e., 2½-ins. from top face of Filler neck) after every 2,000 miles running. On new or reconditioned engines this must be done after the first 500 miles and at 2,000 miles. At the same time clean suction filter plug. Remove crankcase drain plug, drain, and re-fit. Renew oil filter element at 10,000 miles.
Gearbox  
Clutch.   Check adjustment for free movement.
 Wheel Bearings.  These are packed with high melting-point grease during manufacture. Dismantle bearings and re-pack with grease every 20,000 miles.
 Speedometer Reduction Gearbox.  Grease every 1,000 miles. (Do not over-lubricate as excess grease may get on to the brake linings and reduce the efficiency of the brake if front wheel drive).
 Gear Lever Pivot.  Grease every 1,000 miles. (MOV & MAC Models only.)
 Brake Cam Bearing, Rear.  Grease every 1,000 miles. (Do not over-lubricate as excess grease may get on the brake linings and reduce the efficiency of the brake).
 Chains.  Every 2,000 miles test tension of front and rear driving chains, re­adjust if required.

 

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  • Velocette Documents
    • GTP Manuals
      • F40/5R GTP Instruction Book 1951
    • KSS, KTS Manuals
      • F236/4R Mk. II OHC Instruction Book 1950
      • F42/3R OHC Models 1925-1931 Instruction Book
    • MAC Manuals
      • F469/4R MAC Service Guide 1965
      • F466/2R MAC Owner's Handbook 1955
      • F50/7R MAC Rigid Frame Service Manual 1955
      • F50/4R Supplement
    • MOV and MAC
      • F131-3R Instruction Book 1937
    • MSS Manuals
      • F477 Owners Handbook 1954
    • Venom, Viper, MSS
      • F485/1R Owner's Handbook 1956
      • F484/9R Service Guide 1967
      • F484/11R Service Guide 1971
    • Valiant Manuals
      • F62-1R Service Manual